Easy Overnight Breakfast Casserole

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Everyone needs a quick and easy overnight breakfast casserole. This recipe is so simple to make and loaded with flavor. You’re going to love it!

Whether you’re having overnight guests, planning a special brunch, or just wanting something different to serve your family in the morning, you’ll want to try this delicious overnight breakfast casserole.

Recipe for an Easy Overnight Breakfast Casserole

As a former innkeeper, breakfast is one of my favorite meals. (I say “one of” because, if I’m honest, I like every meal!) I have fixed breakfast for many people and have long enjoyed experimenting and creating new recipes to start the day.

Ham and Cheese Overnight Breakfast Casserole

What I love about this overnight breakfast casserole is that it’s a blend of classic flavors that many folks seem to enjoy. However, it also serves up a lot of flexibility.

How to Make Overnight Breakfast Casserole:

Simply by swapping breads, cheeses, meats, or vegetables, you can customize this casserole to please any palette or come up with a new flavor combo each weekend of the year.

Easy Overnight Breakfast Casserole | Inspired by Charm

For this particular recipe, I started with French bread and a dozen eggs. (Makes sense for breakfast, right?)

From there I went with traditional breakfast flavors, including ham, cheddar cheese, and chopped peppers. For even more flavor, I added dijon mustard, garlic powder, salt, pepper, and thyme.

Recipe for an Easy Overnight Breakfast Casserole

Easy Overnight Breakfast Casserole | Inspired by Charm


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All of this gets mixed together and refrigerated overnight. Come morning, all you do is turn on your oven and bake the casserole.

An easy ham and cheese overnight breakfast casserole!

This is another huge perk of this recipe, especially if you’re not a morning person.

An easy ham and cheese overnight breakfast casserole!

Now just slice, serve, and enjoy! Breakfast is ready!

Recipe for Easy Overnight Breakfast Casserole

In case you’re looking for something to go along with this recipe…

Here’s what to serve with this overnight breakfast casserole?

An easy ham and cheese overnight breakfast casserole!

If you’re anything like me, you’re craving some breakfast right about now. Am I correct?

An easy ham and cheese overnight breakfast casserole!

I hope you enjoy this Easy Overnight Breakfast Casserole. Give it a try the next time you’re put in charge of breakfast!

Easy Overnight Breakfast Casserole Recipe:

An easy ham and cheese overnight breakfast casserole!

Easy Overnight Breakfast Casserole

Everyone needs a quick and easy overnight breakfast casserole. This recipe is so simple to make and loaded with flavor. You're going to love it!
5 from 4 votes
Print Pin Rate
Course: Breakfast
Cuisine: American
Keyword: breakfast casserole, casserole, eggs
Prep Time: 15 minutes
Cook Time: 55 minutes
Total Time: 1 hour 10 minutes
Servings: 12 people
Calories: 492kcal



  • Begin by preheating your oven to 350 degrees F. Spray a 9x13-inch baking dish with cooking spray. Fill with the bread, ham, peppers, and cheese. Mix to evenly combine.
  • In a large bowl, whisk together the eggs, milk, Dijon mustard, garlic powder, fresh thyme, salt, and pepper. Pour this mixture on top of the bread mixture. Gently press down the bread with a spoon. Sprinkle with shredded Parmesan cheese.
  • Bake 50-55 minutes until the eggs are cooked through. Cover the pan with aluminum foil if the top begins to brown too quickly. (If preparing the casserole in advance, cover the baking dish with aluminum foil and refrigerate overnight. Bake as directed.)
  • Garnish with fresh thyme and slice to serve.


Calories: 492kcal | Carbohydrates: 60g | Protein: 25g | Fat: 17g | Saturated Fat: 6g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 4g | Trans Fat: 0.1g | Cholesterol: 189mg | Sodium: 1091mg | Potassium: 334mg | Fiber: 5g | Sugar: 10g | Vitamin A: 861IU | Vitamin C: 16mg | Calcium: 350mg | Iron: 5mg

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Recipe Rating


  1. Each Christmas I make an overnight casserole for Christmas morning. I decided to try your recipe. My husband said this was the best one yet!! I agree! This will be my go to casserole each year Christmas!! So delicious!! Thank you for the wonderful recipe! I love your site also, I have followed you for a while now. (and you are just adorable) Happy New Year!!! Hugs!!

  2. This recipe seems like a great opportunity to empty out the fridge using ingredients that may expire soon, right? I love it! I especially love that you can prep it the night before and just bake it in the morning…so I could throw it in the oven, take my dogs for a walk, and when we come back STARVING, breakfast.is done! Ha!
    I’m keeping this recipe in mind for the holidays as well.
    Thanks for sharing, Michael!

  3. I just discovered your recipe when you reposted it and made it last week. Since there are a couple of vegetarians in my family I left out the ham and added in some mushrooms and lightly cooked fresh spinach; kept everything else the same. It was delicious! Wonderful to serve on these cold January mornings.

  4. This recipe was a complete sensation!! It was a total hit! Incredibly delicious!! Made the overnight version. Used green peppers only. Thank you so very much for sharing! Readers, you will love this recipe!

  5. I’ve made this dish before, except I made mine sweeter, more like a bread pudding (same basic recipe). I used the bread (any white or whole wheat), eggs, milk and cinnamon. I layer in blueberries. Great with syrup and sausage on the side. For years, this was my go-to for Christmas morning.